Blower impeller



FIG. 1 is a top plan view of a blower impeller showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top perspective view thereof; and,

FIG. 4 is a bottom plan view thereof.

The broken lines shown in the drawings represent unclaimed portions of the blower impeller and form no part of the claimed design. 

CLAIM The ornamental design for a blower impeller, as shown and described. 